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Finding the Fourth Proportional to 44,464.64, 66,715.68 and 19,491.80

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Solution

The fourth proportional to 44,464.64, 66,715.68 and 19,491.80 is: 29,245.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,464.64 : 66,715.68 = 19,491.80 : x
  2. Step 2: Convert to fraction form
    44,464.64/66,715.68 = 19,491.80/x
  3. Step 3: Cross multiply
    44,464.64x = 66,715.68 × 19,491.80
  4. Step 4: Simplify right side
    44,464.64x = 1,300,408,691.42
  5. Step 5: Solve for x
    x = 1,300,408,691.42/44,464.64
  6. Step 6: Final answer
    x = 29,245.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.